METHOD FOR TUNNELING MACHINE FIXATION IN PREDETERMINED LOCATION Russian patent published in 2006 - IPC E21D9/10 E21C35/00 E21C27/20 

FIELD: coal industry, particularly development machines for hydromines.

SUBSTANCE: method involves performing preparation drilling operations along with well flushing in mine ground with the use of several hollow rods provided with cutting crowns; anchoring tunneling machines by fastening thereof to well walls with the use of spring-piston mechanisms provided with anchoring means and connected to hollow rods so that tunneling machine fastening is carried out without rod removal from wells; cutting new ledge after hollow rod removal from well; fixing anchoring member during ledge cutting after hollow rod removal by applying tension to hollow rod in the absence of water pressure in it. Anchoring member is detached from well wall by moving rod to face simultaneously with supplying pressurized water to the rod before hollow rod removal. Spring-piston mechanism acts on anchoring member in direction transversal to well wall. Then the rod is removed from well and the tunneling machine is moved for distance equal to ledge width and tunneling machine fixation operations are repeated.

EFFECT: increased reliability of temporary tunneling machine anchoring during excavation operation performing.

6 dwg